The wheels are knock off GM CK158 split spoke. They are size 22x9 with a +31 offset I believe. Tires are Michelin Defender LTX sized 285 45/R22. Stock suspension. The tires are 1/2 inch inside the wheel well, so nearly flush with this setup.
My dealer has ordered the parts to complete this repair on my truck next week. They are doing this under PI1376, which appears to be the latest TSB for this issue.
GM's Global A architecture is now being used in the Silverado and Sierra which prevents swapping. You can read about it in this 2010 document: http://www.sandyblogs.com/techlink/feb2010techlink.pdf